Patrick Georgi (patrick@georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4411
-gerrit
commit b7d699f47760f6b1361d42de4b55b713141fbdee Author: Gabe Black gabeblack@google.com Date: Tue Jul 30 21:35:31 2013 -0700
Add a kirby board which is mostly a copy of pit
Change-Id: Ic78c65486816015f7574a13affc6e54acbbea73e Signed-off-by: Gabe Black gabeblack@google.com Reviewed-on: https://gerrit.chromium.org/gerrit/63875 Commit-Queue: Gabe Black gabeblack@chromium.org Reviewed-by: Gabe Black gabeblack@chromium.org Tested-by: Gabe Black gabeblack@chromium.org --- src/mainboard/google/Kconfig | 3 + src/mainboard/google/kirby/Kconfig | 52 +++++ src/mainboard/google/kirby/Makefile.inc | 27 +++ src/mainboard/google/kirby/chromeos.c | 105 +++++++++ src/mainboard/google/kirby/devicetree.cb | 35 +++ src/mainboard/google/kirby/exynos5420.h | 34 +++ src/mainboard/google/kirby/mainboard.c | 384 +++++++++++++++++++++++++++++++ src/mainboard/google/kirby/memory.c | 110 +++++++++ src/mainboard/google/kirby/romstage.c | 280 ++++++++++++++++++++++ src/mainboard/google/kirby/wakeup.c | 29 +++ 10 files changed, 1059 insertions(+)
diff --git a/src/mainboard/google/Kconfig b/src/mainboard/google/Kconfig index c866c1f..8f5fbaa 100644 --- a/src/mainboard/google/Kconfig +++ b/src/mainboard/google/Kconfig @@ -32,6 +32,8 @@ config BOARD_GOOGLE_BUTTERFLY bool "Butterfly" config BOARD_GOOGLE_FALCO bool "Falco" +config BOARD_GOOGLE_KIRBY + bool "Kirby" config BOARD_GOOGLE_LINK bool "Link" config BOARD_GOOGLE_PARROT @@ -52,6 +54,7 @@ endchoice source "src/mainboard/google/bolt/Kconfig" source "src/mainboard/google/butterfly/Kconfig" source "src/mainboard/google/falco/Kconfig" +source "src/mainboard/google/kirby/Kconfig" source "src/mainboard/google/link/Kconfig" source "src/mainboard/google/parrot/Kconfig" source "src/mainboard/google/peppy/Kconfig" diff --git a/src/mainboard/google/kirby/Kconfig b/src/mainboard/google/kirby/Kconfig new file mode 100644 index 0000000..0fa2a61 --- /dev/null +++ b/src/mainboard/google/kirby/Kconfig @@ -0,0 +1,52 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2013 Google Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +if BOARD_GOOGLE_KIRBY + +config BOARD_SPECIFIC_OPTIONS # dummy + def_bool y + select ARCH_ARMV7 + select CPU_SAMSUNG_EXYNOS5420 + select HAVE_UART_MEMORY_MAPPED + select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC_SPI + select BOARD_ROMSIZE_KB_4096 + select MAINBOARD_HAS_CHROMEOS + select MAINBOARD_HAS_NATIVE_VGA_INIT + select MAINBOARD_DO_NATIVE_VGA_INIT + select HAVE_INIT_TIMER + select DRIVER_PARADE_PS8625 + +config MAINBOARD_DIR + string + default google/kirby + +config MAINBOARD_PART_NUMBER + string + default "Kirby" + +config DRAM_SIZE_MB + int + default 4096 + +config EC_GOOGLE_CHROMEEC_SPI_BUS + hex + default 2 + +endif # BOARD_GOOGLE_PIT diff --git a/src/mainboard/google/kirby/Makefile.inc b/src/mainboard/google/kirby/Makefile.inc new file mode 100644 index 0000000..1409e54 --- /dev/null +++ b/src/mainboard/google/kirby/Makefile.inc @@ -0,0 +1,27 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2013 Google Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +bootblock-y += wakeup.c + +romstage-y += memory.c +romstage-y += romstage.c +romstage-y += wakeup.c + +ramstage-y += mainboard.c +ramstage-y += chromeos.c diff --git a/src/mainboard/google/kirby/chromeos.c b/src/mainboard/google/kirby/chromeos.c new file mode 100644 index 0000000..ae219bb --- /dev/null +++ b/src/mainboard/google/kirby/chromeos.c @@ -0,0 +1,105 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <boot/coreboot_tables.h> +#include <console/console.h> +#include <ec/google/chromeec/ec.h> +#include <ec/google/chromeec/ec_commands.h> +#include <string.h> +#include <vendorcode/google/chromeos/chromeos.h> +#include <cpu/samsung/exynos5420/cpu.h> +#include <cpu/samsung/exynos5420/gpio.h> + +enum { + ACTIVE_LOW = 0, + ACTIVE_HIGH = 1 +}; + +void fill_lb_gpios(struct lb_gpios *gpios) +{ + int count = 0; + + /* Write Protect: active low */ + gpios->gpios[count].port = EXYNOS5_GPX3; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = gpio_get_value(GPIO_X30); // WP_GPIO + strncpy((char *)gpios->gpios[count].name, "write protect", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Recovery: active low */ + gpios->gpios[count].port = -1; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_recovery_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "recovery", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Lid: active high */ + gpios->gpios[count].port = EXYNOS5_GPX3; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = gpio_get_value(GPIO_X34); // LID_GPIO + strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH); + count++; + + /* Power: virtual GPIO active low */ + gpios->gpios[count].port = EXYNOS5_GPX1; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = + gpio_get_value(GPIO_X12); // POWER_GPIO + strncpy((char *)gpios->gpios[count].name, "power", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Developer: virtual GPIO active high */ + gpios->gpios[count].port = -1; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_developer_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "developer", + GPIO_MAX_NAME_LENGTH); + count++; + + gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio)); + gpios->count = count; + + printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size); +} + +int get_developer_mode_switch(void) +{ + return 0; +} + +int get_recovery_mode_switch(void) +{ + uint32_t ec_events; + + /* The GPIO is active low. */ + if (!gpio_get_value(GPIO_X07)) // RECMODE_GPIO + return 1; + + ec_events = google_chromeec_get_events_b(); + return !!(ec_events & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); +} + +int get_recovery_mode_from_vbnv(void) +{ + return 0; +} diff --git a/src/mainboard/google/kirby/devicetree.cb b/src/mainboard/google/kirby/devicetree.cb new file mode 100644 index 0000000..2c9e668 --- /dev/null +++ b/src/mainboard/google/kirby/devicetree.cb @@ -0,0 +1,35 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2013 Google Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +chip cpu/samsung/exynos5420 + device cpu_cluster 0 on end + register "xres" = "1366" + register "yres" = "768" + register "bpp" = "16" + # complex magic timing! + register "clkval_f" = "2" + register "upper_margin" = "14" + register "lower_margin" = "3" + register "vsync" = "5" + register "left_margin" = "80" + register "right_margin" = "48" + register "hsync" = "32" + register "usb_vbus_gpio" = "GPIO_X11" + register "usb_hsic_gpio" = "GPIO_E10" +end diff --git a/src/mainboard/google/kirby/exynos5420.h b/src/mainboard/google/kirby/exynos5420.h new file mode 100644 index 0000000..21b704c --- /dev/null +++ b/src/mainboard/google/kirby/exynos5420.h @@ -0,0 +1,34 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* I2C */ +#define I2C_0_SPEED 100000 +#define I2C_4_SPEED 1000000 /* 1MHz */ +#define I2C_SLAVE 0 + +/* Voltages */ +#define VDD_ARM_MV 1300 // 1.3V +#define VDD_INT_UV 1012500 // 1.0125V +#define VDD_MIF_MV 1000 // 1.0V +#define VDD_G3D_MV 1200 // 1.2V +#define VDD_LDO2_MV 1500 // 1.5V +#define VDD_LDO3_MV 1800 // 1.8V +#define VDD_LDO5_MV 1800 // 1.8V +#define VDD_LDO10_MV 1800 // 1.8V + diff --git a/src/mainboard/google/kirby/mainboard.c b/src/mainboard/google/kirby/mainboard.c new file mode 100644 index 0000000..98e591a --- /dev/null +++ b/src/mainboard/google/kirby/mainboard.c @@ -0,0 +1,384 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <device/device.h> +#include <device/i2c.h> +#include <cbmem.h> +#include <delay.h> +#include <edid.h> +#include <vbe.h> +#include <boot/coreboot_tables.h> +#include <arch/cache.h> +#include <arch/exception.h> +#include <cpu/samsung/exynos5420/tmu.h> +#include <cpu/samsung/exynos5420/clk.h> +#include <cpu/samsung/exynos5420/cpu.h> +#include <cpu/samsung/exynos5420/gpio.h> +#include <cpu/samsung/exynos5420/power.h> +#include <cpu/samsung/exynos5420/i2c.h> +#include <cpu/samsung/exynos5420/dp-core.h> +#include <drivers/parade/ps8625/ps8625.h> +#include <ec/google/chromeec/ec.h> +#include <stdlib.h> + +#include "exynos5420.h" + +/* convenient shorthand (in MB) */ +#define DRAM_START (CONFIG_SYS_SDRAM_BASE >> 20) +#define DRAM_SIZE CONFIG_DRAM_SIZE_MB +#define DRAM_END (DRAM_START + DRAM_SIZE) /* plus one... */ + +static struct edid edid = { + .ha = 1366, + .va = 768, + .bpp = 16, + .x_resolution = 1366, + .y_resolution = 768, + .bytes_per_line = 2 * 1366 +}; + +static const struct parade_write parade_writes[] = { + { 0x02, 0xa1, 0x01 }, /* HPD low */ + /* + * SW setting + * [1:0] SW output 1.2V voltage is lower to 96% + */ + { 0x04, 0x14, 0x01 }, + /* + * RCO SS setting + * [5:4] = b01 0.5%, b10 1%, b11 1.5% + */ + { 0x04, 0xe3, 0x20 }, + { 0x04, 0xe2, 0x80 }, /* [7] RCO SS enable */ + /* + * RPHY Setting + * [3:2] CDR tune wait cycle before + * measure for fine tune b00: 1us, + * 01: 0.5us, 10:2us, 11:4us. + */ + { 0x04, 0x8a, 0x0c }, + { 0x04, 0x89, 0x08 }, /* [3] RFD always on */ + /* + * CTN lock in/out: + * 20000ppm/80000ppm. Lock out 2 + * times. + */ + { 0x04, 0x71, 0x2d }, + /* + * 2.7G CDR settings + * NOF=40LSB for HBR CDR setting + */ + { 0x04, 0x7d, 0x07 }, + { 0x04, 0x7b, 0x00 }, /* [1:0] Fmin=+4bands */ + { 0x04, 0x7a, 0xfd }, /* [7:5] DCO_FTRNG=+-40% */ + /* + * 1.62G CDR settings + * [5:2]NOF=64LSB [1:0]DCO scale is 2/5 + */ + { 0x04, 0xc0, 0x12 }, + { 0x04, 0xc1, 0x92 }, /* Gitune=-37% */ + { 0x04, 0xc2, 0x1c }, /* Fbstep=100% */ + { 0x04, 0x32, 0x80 }, /* [7] LOS signal disable */ + /* + * RPIO Setting + * [7:4] LVDS driver bias current : + * 75% (250mV swing) + */ + { 0x04, 0x00, 0xb0 }, + /* + * [7:6] Right-bar GPIO output strength is 8mA + */ + { 0x04, 0x15, 0x40 }, + /* EQ Training State Machine Setting */ + { 0x04, 0x54, 0x10 }, /* RCO calibration start */ + /* [4:0] MAX_LANE_COUNT set to one lane */ + { 0x01, 0x02, 0x81 }, + /* [4:0] LANE_COUNT_SET set to one lane */ + { 0x01, 0x21, 0x81 }, + { 0x00, 0x52, 0x20 }, + { 0x00, 0xf1, 0x03 }, /* HPD CP toggle enable */ + { 0x00, 0x62, 0x41 }, + /* Counter number, add 1ms counter delay */ + { 0x00, 0xf6, 0x01 }, + /* + * [6]PWM function control by + * DPCD0040f[7], default is PWM + * block always works. + */ + { 0x00, 0x77, 0x06 }, + /* + * 04h Adjust VTotal tolerance to + * fix the 30Hz no display issue + */ + { 0x00, 0x4c, 0x04 }, + /* DPCD00400='h00, Parade OUI = 'h001cf8 */ + { 0x01, 0xc0, 0x00 }, + { 0x01, 0xc1, 0x1c }, /* DPCD00401='h1c */ + { 0x01, 0xc2, 0xf8 }, /* DPCD00402='hf8 */ + /* + * DPCD403~408 = ASCII code + * D2SLV5='h4432534c5635 + */ + { 0x01, 0xc3, 0x44 }, + { 0x01, 0xc4, 0x32 }, /* DPCD404 */ + { 0x01, 0xc5, 0x53 }, /* DPCD405 */ + { 0x01, 0xc6, 0x4c }, /* DPCD406 */ + { 0x01, 0xc7, 0x56 }, /* DPCD407 */ + { 0x01, 0xc8, 0x35 }, /* DPCD408 */ + /* + * DPCD40A, Initial Code major revision + * '01' + */ + { 0x01, 0xca, 0x01 }, + /* DPCD40B, Initial Code minor revision '05' */ + { 0x01, 0xcb, 0x05 }, + /* DPCD720, Select external PWM */ + { 0x01, 0xa5, 0x80 }, + /* + * Set LVDS output as 6bit-VESA mapping, + * single LVDS channel + */ + { 0x01, 0xcc, 0x13 }, + /* Enable SSC set by register */ + { 0x02, 0xb1, 0x20 }, + /* + * Set SSC enabled and +/-1% central + * spreading + */ + { 0x04, 0x10, 0x16 }, + /* MPU Clock source: LC => RCO */ + { 0x04, 0x59, 0x60 }, + { 0x04, 0x54, 0x14 }, /* LC -> RCO */ + { 0x02, 0xa1, 0x91 } /* HPD high */ +}; + +/* TODO: transplanted DP stuff, clean up once we have something that works */ +static enum exynos5_gpio_pin dp_pd_l = GPIO_X35; /* active low */ +static enum exynos5_gpio_pin dp_rst_l = GPIO_Y77; /* active low */ +static enum exynos5_gpio_pin dp_hpd = GPIO_X26; /* active high */ +static enum exynos5_gpio_pin bl_pwm = GPIO_B20; /* active high */ +static enum exynos5_gpio_pin bl_en = GPIO_X22; /* active high */ + +static void parade_dp_bridge_setup(void) +{ + gpio_set_value(dp_pd_l, 1); + gpio_cfg_pin(dp_pd_l, GPIO_OUTPUT); + gpio_set_pull(dp_pd_l, GPIO_PULL_NONE); + + gpio_set_value(dp_rst_l, 0); + gpio_cfg_pin(dp_rst_l, GPIO_OUTPUT); + gpio_set_pull(dp_rst_l, GPIO_PULL_NONE); + udelay(10); + gpio_set_value(dp_rst_l, 1); + + gpio_cfg_pin(dp_hpd, GPIO_INPUT); + + /* De-assert PD (and possibly RST) to power up the bridge. */ + gpio_set_value(dp_pd_l, 1); + gpio_set_value(dp_rst_l, 1); + + /* Hang around for the bridge to come up. */ + mdelay(40); + + /* Configure the bridge chip. */ + exynos_pinmux_i2c7(); + i2c_init(7, 100000, 0x00); + + parade_ps8625_bridge_setup(7, 0x48, + parade_writes, + ARRAY_SIZE(parade_writes)); +} + +/* + * This delay is T3 in the LCD timing spec (defined as >200ms). We set + * this down to 60ms since that's the approximate maximum amount of time + * it'll take a bridge to start outputting LVDS data. The delay of + * >200ms is just a conservative value to avoid turning on the backlight + * when there's random LCD data on the screen. Shaving 140ms off the + * boot is an acceptable trade-off. + */ +#define LCD_T3_DELAY_MS 60 + +#define LCD_T5_DELAY_MS 10 +#define LCD_T6_DELAY_MS 10 + +static void backlight_pwm(void) +{ + /*Configure backlight PWM as a simple output high (100% brightness) */ + gpio_direction_output(bl_pwm, 1); + udelay(LCD_T6_DELAY_MS * 1000); +} + +static void backlight_en(void) +{ + /* Configure GPIO for LCD_BL_EN */ + gpio_direction_output(bl_en, 1); +} + +//static struct video_info smdk5420_dp_config = { +static struct video_info dp_video_info = { + /* FIXME: fix video_info struct to use const for name */ + .name = (char *)"eDP-LVDS NXP PTN3460", + + .h_sync_polarity = 0, + .v_sync_polarity = 0, + .interlaced = 0, + + .color_space = COLOR_RGB, + .dynamic_range = VESA, + .ycbcr_coeff = COLOR_YCBCR601, + .color_depth = COLOR_8, + + .link_rate = LINK_RATE_2_70GBPS, + .lane_count = LANE_COUNT2, +}; + +/* FIXME: move some place more appropriate */ +#define EXYNOS5420_DP1_BASE 0x145b0000 +#define MAX_DP_TRIES 5 + +/* + * This function disables the USB3.0 PLL to save power + */ +static void disable_usb30_pll(void) +{ + enum exynos5_gpio_pin usb3_pll_l = GPIO_Y11; + + gpio_direction_output(usb3_pll_l, 0); +} + +static void gpio_init(void) +{ + /* Set up the I2C busses. */ + exynos_pinmux_i2c2(); + exynos_pinmux_i2c4(); + exynos_pinmux_i2c7(); + exynos_pinmux_i2c8(); + exynos_pinmux_i2c9(); + exynos_pinmux_i2c10(); +} + +enum { + FET_CTRL_WAIT = 3 << 2, + FET_CTRL_ADENFET = 1 << 1, + FET_CTRL_ENFET = 1 << 0 +}; + +static void tps65090_thru_ec_fet_set(int index) +{ + uint8_t value = FET_CTRL_ADENFET | FET_CTRL_WAIT | FET_CTRL_ENFET; + + if (google_chromeec_i2c_xfer(0x48, 0xe + index, 1, &value, 1, 0)) { + printk(BIOS_ERR, + "Error sending i2c pass through command to EC.\n"); + return; + } +} + +static void lcd_vdd(void) +{ + /* Enable FET6, lcd panel */ + tps65090_thru_ec_fet_set(6); +} + +static void backlight_vdd(void) +{ + /* Enable FET1, backlight */ + tps65090_thru_ec_fet_set(1); +} + +/* this happens after cpu_init where exynos resources are set */ +static void mainboard_init(device_t dev) +{ + struct s5p_dp_device dp_device = { + .base = (struct exynos5_dp *)EXYNOS5420_DP1_BASE, + .video_info = &dp_video_info, + }; + void *fb_addr = (void *)(get_fb_base_kb() * KiB); + + gpio_init(); + + tmu_init(&exynos5420_tmu_info); + + /* Clock Gating all the unused IP's to save power */ + clock_gate(); + + /* Disable USB3.0 PLL to save 250mW of power */ + disable_usb30_pll(); + + set_vbe_mode_info_valid(&edid, (uintptr_t)fb_addr); + + lcd_vdd(); + + parade_dp_bridge_setup(); + dp_controller_init(&dp_device); + + udelay(LCD_T3_DELAY_MS * 1000); + + backlight_vdd(); + backlight_pwm(); + backlight_en(); + + // Uncomment to get excessive GPIO output: + // gpio_info(); +} + +static void mainboard_enable(device_t dev) +{ + dev->ops->init = &mainboard_init; + +#if !CONFIG_DYNAMIC_CBMEM + /* set up coreboot tables */ + /* FIXME: this should happen somewhere else */ + high_tables_size = CONFIG_COREBOOT_TABLES_SIZE; + high_tables_base = CONFIG_SYS_SDRAM_BASE + + ((unsigned)CONFIG_DRAM_SIZE_MB << 20ULL) - + CONFIG_COREBOOT_TABLES_SIZE; + cbmem_init(high_tables_base, high_tables_size); +#endif + + /* set up dcache and MMU */ + /* FIXME: this should happen via resource allocator */ + exynos5420_config_l2_cache(); + mmu_init(); + mmu_config_range(0, DRAM_START, DCACHE_OFF); + mmu_config_range(DRAM_START, DRAM_SIZE, DCACHE_WRITEBACK); + mmu_config_range(DRAM_END, 4096 - DRAM_END, DCACHE_OFF); + dcache_invalidate_all(); + dcache_mmu_enable(); + + /* this is going to move, but we must have it now and we're + * not sure where */ + exception_init(); + + const unsigned epll_hz = 192000000; + const unsigned sample_rate = 48000; + const unsigned lr_frame_size = 256; + clock_epll_set_rate(epll_hz); + clock_select_i2s_clk_source(); + clock_set_i2s_clk_prescaler(epll_hz, sample_rate * lr_frame_size); + + power_enable_xclkout(); +} + +struct chip_operations mainboard_ops = { + .name = "Samsung/Google ARM Chromebook", + .enable_dev = mainboard_enable, +}; diff --git a/src/mainboard/google/kirby/memory.c b/src/mainboard/google/kirby/memory.c new file mode 100644 index 0000000..74f3e6e --- /dev/null +++ b/src/mainboard/google/kirby/memory.c @@ -0,0 +1,110 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stddef.h> +#include <stdlib.h> +#include <console/console.h> + +#include <cpu/samsung/exynos5420/gpio.h> +#include <cpu/samsung/exynos5420/dmc.h> +#include <cpu/samsung/exynos5420/setup.h> +#include <cpu/samsung/exynos5420/clk.h> + +const struct mem_timings mem_timings = { + .mem_manuf = MEM_MANUF_SAMSUNG, + .mem_type = DDR_MODE_DDR3, + .frequency_mhz = 800, + .direct_cmd_msr = { + 0x00020018, 0x00030000, 0x00010002, 0x00000d70 + }, + .timing_ref = 0x000000bb, + .timing_row = 0x6836650f, + .timing_data = 0x3630580b, + .timing_power = 0x41000a26, + .phy0_dqs = 0x08080808, + .phy1_dqs = 0x08080808, + .phy0_dq = 0x08080808, + .phy1_dq = 0x08080808, + .phy0_tFS = 0x8, + .phy1_tFS = 0x8, + .phy0_pulld_dqs = 0xf, + .phy1_pulld_dqs = 0xf, + + .lpddr3_ctrl_phy_reset = 0x1, + .ctrl_start_point = 0x10, + .ctrl_inc = 0x10, + .ctrl_start = 0x1, + .ctrl_dll_on = 0x1, + .ctrl_ref = 0x8, + + .ctrl_force = 0x1a, + .ctrl_rdlat = 0x0b, + .ctrl_bstlen = 0x08, + + .fp_resync = 0x8, + .iv_size = 0x7, + .dfi_init_start = 1, + .aref_en = 1, + + .rd_fetch = 0x3, + + .zq_mode_dds = 0x6, + .zq_mode_term = 0x1, + .zq_mode_noterm = 1, + + /* + * Dynamic Clock: Always Running + * Memory Burst length: 8 + * Number of chips: 1 + * Memory Bus width: 32 bit + * Memory Type: DDR3 + * Additional Latancy for PLL: 0 Cycle + */ + .memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE | + DMC_MEMCONTROL_DPWRDN_DISABLE | + DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | + DMC_MEMCONTROL_TP_DISABLE | + DMC_MEMCONTROL_DSREF_DISABLE | + DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | + DMC_MEMCONTROL_MEM_TYPE_DDR3 | + DMC_MEMCONTROL_MEM_WIDTH_32BIT | + DMC_MEMCONTROL_NUM_CHIP_2 | + DMC_MEMCONTROL_BL_8 | + DMC_MEMCONTROL_PZQ_DISABLE | + DMC_MEMCONTROL_MRR_BYTE_7_0, + .memconfig = DMC_MEMCONFIG_CHIP_MAP_SPLIT | + DMC_MEMCONFIGx_CHIP_COL_10 | + DMC_MEMCONFIGx_CHIP_ROW_15 | + DMC_MEMCONFIGx_CHIP_BANK_8, + .prechconfig_tp_cnt = 0xff, + .dpwrdn_cyc = 0xff, + .dsref_cyc = 0xffff, + .concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE | + DMC_CONCONTROL_TIMEOUT_LEVEL0 | + DMC_CONCONTROL_RD_FETCH_DISABLE | + DMC_CONCONTROL_EMPTY_DISABLE | + DMC_CONCONTROL_AREF_EN_DISABLE | + DMC_CONCONTROL_IO_PD_CON_DISABLE, + .dmc_channels = 1, + .chips_per_channel = 2, + .chips_to_configure = 2, + .send_zq_init = 1, + .gate_leveling_enable = 1, +}; diff --git a/src/mainboard/google/kirby/romstage.c b/src/mainboard/google/kirby/romstage.c new file mode 100644 index 0000000..255f292 --- /dev/null +++ b/src/mainboard/google/kirby/romstage.c @@ -0,0 +1,280 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <types.h> +#include <stdlib.h> + +#include <armv7.h> +#include <cbfs.h> +#include <cbmem.h> + +#include <arch/cache.h> +#include <cpu/samsung/exynos5420/i2c.h> +#include <cpu/samsung/exynos5420/clk.h> +#include <cpu/samsung/exynos5420/cpu.h> +#include <cpu/samsung/exynos5420/dmc.h> +#include <cpu/samsung/exynos5420/gpio.h> +#include <cpu/samsung/exynos5420/setup.h> +#include <cpu/samsung/exynos5420/periph.h> +#include <cpu/samsung/exynos5420/power.h> +#include <cpu/samsung/exynos5420/wakeup.h> +#include <console/console.h> +#include <arch/stages.h> + +#include <drivers/maxim/max77802/max77802.h> +#include <device/i2c.h> + +#include "exynos5420.h" + +#define MMC0_GPIO_PIN (58) + +struct pmic_write +{ + int or_orig; // Whether to or in the original value. + uint8_t reg; // Register to write. + uint8_t val; // Value to write. +}; + +/* + * Use read-modify-write for MAX77802 control registers and clobber the + * output voltage setting (BUCK?DVS?) registers. + */ +struct pmic_write pmic_writes[] = +{ + { 1, MAX77802_REG_PMIC_32KHZ, MAX77802_32KHCP_EN }, + { 0, MAX77802_REG_PMIC_BUCK1DVS1, MAX77802_BUCK1DVS1_1V }, + { 1, MAX77802_REG_PMIC_BUCK1CTRL, MAX77802_BUCK_TYPE1_ON | + MAX77802_BUCK_TYPE1_IGNORE_PWRREQ }, + { 0, MAX77802_REG_PMIC_BUCK2DVS1, MAX77802_BUCK2DVS1_1V }, + { 1, MAX77802_REG_PMIC_BUCK2CTRL1, MAX77802_BUCK_TYPE2_ON | + MAX77802_BUCK_TYPE2_IGNORE_PWRREQ }, + { 0, MAX77802_REG_PMIC_BUCK3DVS1, MAX77802_BUCK3DVS1_1V }, + { 1, MAX77802_REG_PMIC_BUCK3CTRL1, MAX77802_BUCK_TYPE2_ON | + MAX77802_BUCK_TYPE2_IGNORE_PWRREQ }, + { 0, MAX77802_REG_PMIC_BUCK4DVS1, MAX77802_BUCK4DVS1_1V }, + { 1, MAX77802_REG_PMIC_BUCK4CTRL1, MAX77802_BUCK_TYPE2_ON | + MAX77802_BUCK_TYPE2_IGNORE_PWRREQ }, + { 0, MAX77802_REG_PMIC_BUCK6DVS1, MAX77802_BUCK6DVS1_1V }, + { 1, MAX77802_REG_PMIC_BUCK6CTRL, MAX77802_BUCK_TYPE1_ON | + MAX77802_BUCK_TYPE1_IGNORE_PWRREQ }, + { 1, MAX77802_REG_PMIC_LDO35CTRL1, MAX77802_LDO35CTRL1_1_2V }, +}; + +static void setup_power(int is_resume) +{ + int error = 0; + int i; + + power_init(); + + if (is_resume) { + return; + } + + /* Initialize I2C bus to configure PMIC. */ + exynos_pinmux_i2c4(); + i2c_init(4, I2C_4_SPEED, 0x00); + + printk(BIOS_DEBUG, "%s: Setting up PMIC...\n", __func__); + + for (i = 0; i < ARRAY_SIZE(pmic_writes); i++) { + uint8_t data = 0; + uint8_t reg = pmic_writes[i].reg; + + if (pmic_writes[i].or_orig) + error |= i2c_read(4, MAX77802_I2C_ADDR, + reg, sizeof(reg), + &data, sizeof(data)); + data |= pmic_writes[i].val; + error |= i2c_write(4, MAX77802_I2C_ADDR, + reg, sizeof(reg), + &data, sizeof(data)); + } + + if (error) + die("Failed to intialize PMIC.\n"); +} + +static void setup_storage(void) +{ + /* MMC0: Fixed, 8 bit mode, connected with GPIO. */ + if (clock_set_dwmci(PERIPH_ID_SDMMC0)) + printk(BIOS_CRIT, "%s: Failed to set MMC0 clock.\n", __func__); + exynos_pinmux_sdmmc0(); + + /* MMC2: Removable, 4 bit mode, no GPIO. */ + clock_set_dwmci(PERIPH_ID_SDMMC2); + exynos_pinmux_sdmmc2(); +} + +static void setup_ec(void) +{ + /* SPI2 (EC) is slower and needs to work in half-duplex mode with + * single byte bus width. */ + clock_set_rate(PERIPH_ID_SPI2, 5000000); + exynos_pinmux_spi2(); +} + +static void setup_gpio(void) +{ + gpio_direction_input(GPIO_X30); // WP_GPIO + gpio_set_pull(GPIO_X30, GPIO_PULL_NONE); + + gpio_direction_input(GPIO_X07); // RECMODE_GPIO + gpio_set_pull(GPIO_X07, GPIO_PULL_NONE); + + gpio_direction_input(GPIO_X34); // LID_GPIO + gpio_set_pull(GPIO_X34, GPIO_PULL_NONE); + + gpio_direction_input(GPIO_X12); // POWER_GPIO + gpio_set_pull(GPIO_X12, GPIO_PULL_NONE); +} + +static void setup_memory(struct mem_timings *mem, int is_resume) +{ + printk(BIOS_SPEW, "manufacturer: 0x%x type: 0x%x, div: 0x%x, mhz: %d\n", + mem->mem_manuf, + mem->mem_type, + mem->mpll_mdiv, + mem->frequency_mhz); + + if (ddr3_mem_ctrl_init(mem, DMC_INTERLEAVE_SIZE, !is_resume)) { + die("Failed to initialize memory controller.\n"); + } +} + +#define PRIMITIVE_MEM_TEST 0 +#if PRIMITIVE_MEM_TEST +static unsigned long primitive_mem_test(void) +{ + unsigned long *l = (void *)0x40000000; + int bad = 0; + unsigned long i; + for(i = 0; i < 256*1048576; i++){ + if (! (i%1048576)) + printk(BIOS_SPEW, "%lu ...", i); + l[i] = 0xffffffff - i; + } + + for(i = 0; i < 256*1048576; i++){ + if (! (i%1048576)) + printk(BIOS_SPEW, "%lu ...", i); + if (l[i] != (0xffffffff - i)){ + printk(BIOS_SPEW, "%p: want %08lx got %08lx\n", l, l[i], 0xffffffff - i); + bad++; + } + } + + printk(BIOS_SPEW, "%d errors\n", bad); + + return bad; +} +#else +#define primitive_mem_test() +#endif + +#define SIMPLE_SPI_TEST 0 +#if SIMPLE_SPI_TEST +/* here is a simple SPI debug test, known to fid trouble */ +static void simple_spi_test(void) +{ + struct cbfs_media default_media, *media; + int i, amt = 4 * MiB, errors = 0; + //u32 *data = (void *)0x40000000; + u32 data[1024]; + u32 in; + + amt = sizeof(data); + media = &default_media; + if (init_default_cbfs_media(media) != 0) { + printk(BIOS_SPEW, "Failed to initialize default media.\n"); + return; + } + + + media->open(media); + if (media->read(media, data, (size_t) 0, amt) < amt){ + printk(BIOS_SPEW, "simple_spi_test fails\n"); + return; + } + + + for(i = 0; i < amt; i += 4){ + if (media->read(media, &in, (size_t) i, 4) < 1){ + printk(BIOS_SPEW, "simple_spi_test fails at %d\n", i); + return; + } + if (data[i/4] != in){ + errors++; + printk(BIOS_SPEW, "BAD at %d(%p):\nRAM %08lx\nSPI %08lx\n", + i, &data[i/4], (unsigned long)data[i/4], (unsigned long)in); + /* reread it to see which is wrong. */ + if (media->read(media, &in, (size_t) i, 4) < 1){ + printk(BIOS_SPEW, "simple_spi_test fails at %d\n", i); + return; + } + printk(BIOS_SPEW, "RTRY at %d(%p):\nRAM %08lx\nSPI %08lx\n", + i, &data[i/4], (unsigned long)data[i/4], (unsigned long)in); + } + + } + printk(BIOS_SPEW, "%d errors\n", errors); +} +#else +#define simple_spi_test() +#endif + +void main(void) +{ + + extern struct mem_timings mem_timings; + void *entry; + int is_resume = (get_wakeup_state() != IS_NOT_WAKEUP); + + /* Clock must be initialized before console_init, otherwise you may need + * to re-initialize serial console drivers again. */ + system_clock_init(); + + console_init(); + + setup_power(is_resume); + setup_memory(&mem_timings, is_resume); + + primitive_mem_test(); + + if (is_resume) { + wakeup(); + } + + setup_storage(); + setup_gpio(); + setup_ec(); + + simple_spi_test(); + /* Set SPI (primary CBFS media) clock to 50MHz. */ + /* if this is uncommented SPI will not work correctly. */ + clock_set_rate(PERIPH_ID_SPI1, 50000000); + simple_spi_test(); + + cbmem_initialize_empty(); + + entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram"); + simple_spi_test(); + stage_exit(entry); +} diff --git a/src/mainboard/google/kirby/wakeup.c b/src/mainboard/google/kirby/wakeup.c new file mode 100644 index 0000000..a82b632 --- /dev/null +++ b/src/mainboard/google/kirby/wakeup.c @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cpu/samsung/exynos5420/gpio.h> +#include <cpu/samsung/exynos5420/wakeup.h> + +int wakeup_need_reset(void) +{ + /* The "wake up" event is not reliable (known as "bad wakeup") and needs + * reset if GPIO value is high. */ + return gpio_get_value(GPIO_Y10); +} +